View source for Simsia

{{Treatment/ID
|accepted_name=Simsia
|accepted_authority=Persoon
|publications={{Treatment/Publication
|title=Syn. Pl.
|place=2: 478. 1807
|year=1807
}}
|common_names=Bush sunflower
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Helianthinae;Simsia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Heliantheae]]</div><div class="higher-taxon"><small>subtribe</small>[[Asteraceae (tribe Heliantheae) subtribe Helianthinae]]</div><div class="higher-taxon"><small>genus</small>[[Simsia]]</div></div>
|etymology=For John Sims, 1749–1831, British physician and botanist
|volume=Volume 21
|mention_page=page 135
|treatment_page=page 140
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals,</b> perennials, or subshrubs [shrubs], 20–400 cm. <b>Stems</b> erect or ascending [decumbent], sparingly to freely branched. <b>Leaves</b> cauline; opposite (proximal) or alternate [whorled]; petiolate (petioles often ± winged, often with expanded bases, those bases sometimes fused to form nodal “discs”) [sessile]; blades 3-nerved from bases, mostly deltate to ovate [linear], sometimes 3- [5-]lobed[pinnatifid], bases cordate to cuneate, ultimate margins entire or toothed, faces hirsute, hispid, pilose, puberulent, scabrous, or scabro-hispid [sericeous], often gland-dotted or ± stipitate-glandular to glandular-puberulent. <b>Heads</b> radiate [discoid], borne singly or in 2s or 3s, or in tight to loose, corymbiform [paniculiform] arrays. <b>Involucres</b> campanulate [ovoid-campanulate to urceolate], 5–16[–22] mm diam. <b>Phyllaries</b> persistent, [11–]13–43[–66] in 2–4 series (tightly appressed to broadly reflexed, unequal to subequal). <b>Receptacles</b> low-convex, paleate (paleae conduplicate, ± enclosing cypselae). <b>Ray</b> florets [0–]5–21[–45], styliferous and sterile; corollas orange-yellow [lemon-yellow, pink, purple, or white]. <b>Disc</b> florets [12–]13–154[–172], bisexual, fertile; corollas concolorous with rays (usually turning purple apically), tubes (often glandular-hairy) shorter than throats, lobes 5, ± triangular (anthers black, yellow, or yellow proximally and bronze or purple distally; style branches relatively slender, apices sometimes attenuate). <b>Cypselae</b> flattened, thin-margined [thickened, biconvex] (shoulders minute to conspicuous, faces glabrous or hairy); pappi 0, or fragile or readily falling, of 2 ± subulate scales [plus 4–12 shorter scales]. <b>x</b> = 17.</span><!--

-->{{Treatment/Body
|distribution=sw United States;Mexico;West Indies (Jamaica);Central America;South America.
|discussion=<p>Species 20 (2 in the flora).</p>
|tables=
|references={{Treatment/Reference
|id=spooner1990a
|text=Spooner, D. M. 1990. Systematics of Simsia (Compositae–Heliantheae). Syst. Bot. Monogr. 30: 1–90.
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Perennials or subshrubs (roots fusiform-thickened); ray florets 8–21, corollas light orange-yellow (abaxial faces often brown- or purple-lined, or wholly brown or purple); disc florets (26–)90–154; anthers usually yellow, rarely black
|[[Simsia calva|Simsia calva]]
|-id=key-0-1
|1
|Annuals (rarely persisting, taprooted or fibrous rooted); ray florets 5–10, corollas orange-yellow; disc florets 13–27; anthers yellow proximally, usually purple to bronze distally
|[[Simsia lagasceiformis|Simsia lagasceiformis]]
|}
</div></div><!--

-->{{#Taxon:
name=Simsia
|author=David M. Spooner
|authority=Persoon
|rank=genus
|parent rank=subtribe
|synonyms=
|basionyms=
|family=Asteraceae
|distribution=sw United States;Mexico;West Indies (Jamaica);Central America;South America.
|reference=spooner1990a
|publication title=Syn. Pl.
|publication year=1807
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V21_339.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Helianthinae
|genus=Simsia
}}<!--

-->[[Category:Treatment]][[Category:Asteraceae (tribe Heliantheae) subtribe Helianthinae]]